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Examples ofdelta-v
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To correct for this orbital perturbation, regular orbital stationkeeping manoeuvres are necessary, amounting to adelta-vof approximately 50 m/s per year.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Over a time "t" the change in speed of the spacecraft is ("a" - "g") "t", whereas thedelta-vexpended is "at".
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This example is from Wikipedia and may be reused under a CC BY-SA license.A rocket stage, while carrying a given load, is capable of giving a particulardelta-v.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Currently, 2-4 stages are needed to achieve the requireddelta-v.
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This example is from Wikipedia and may be reused under a CC BY-SA license.For low exhaust velocity with respect to the missiondelta-v, enormous amounts of reaction mass is needed.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The velocity of the vehicle needs substantial burns at the intersection of the two orbital planes and thedelta-vis usually extremely high.
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This example is from Wikipedia and may be reused under a CC BY-SA license.In this case a gravity turn is not the optimal entry trajectory but it does allow for approximation of the truedelta-vrequired.
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This example is from Wikipedia and may be reused under a CC BY-SA license.In astrodynamics, this energy expenditure is defined by the net change in the spacecraft's velocity, ordelta-v.
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This example is from Wikipedia and may be reused under a CC BY-SA license.It is also notable for having a lowdelta-vrequirement for rendezvous.
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This example is from Wikipedia and may be reused under a CC BY-SA license.It is typical to combine the effects of these and other effects into an effective missiondelta-v.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Thedelta-vto make the necessary plane change is typically extremely high.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The actual acceleration of the craft is "a" - "g" and it is usingdelta-vat a rate of "a" per unit time.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The early business model for these services is primarily in near-geosynchronous orbit, although largedelta-vorbital maneuvering services are also envisioned.
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This example is from Wikipedia and may be reused under a CC BY-SA license.To reach low earth orbit of the space station of 300 km, thedelta-vis over six times higher about 9.4 km/s.
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This example is from Wikipedia and may be reused under a CC BY-SA license.To reach orbit, the rocket must impart to the payload adelta-vof about 9.310 km/s.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Orbital speed is slower for higher orbits, but attaining them requires higherdelta-v.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Thus, the effectivedelta-vrequirement for these vehicles are reduced.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Also, the equation strictly applies only to a theoretical impulsive maneuver, in which the propellant is discharged anddelta-vapplied instantaneously.
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This example is from Wikipedia and may be reused under a CC BY-SA license.Thedelta-vneeded to achieve low earth orbit starts around 9.4 km/s.
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This example is from Wikipedia and may be reused under a CC BY-SA license.The correction of this effect requires orbit control manoeuvres with a maximumdelta-vof about 2 m/s per year, depending on the desired longitude.
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Wikipedia
This example is from Wikipedia and may be reused under a CC BY-SA license.These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors.
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